creatine: yellow-green pee

What exactly is going on when I take creatine and my pee is a somewhat unnatural, diesel fuel looking yellow-green color? This never happened to me when I took cee caps, but I recently got some MRI anabolic switch for cheap and now this happens. I drink loads of water so I don't think I'm dehydrated, I'm not taking large amounts of b vitamins or anything else different; my best guess is that the instructions on the can are telling me to take too much so I have to buy more sooner and I'm just peeing out the excess? Has anybody else experienced this?

Also, define "drink loads of water." What is a lot for you still may not be enough. Try to drink at least a gallon+/day. Either fill a gallon water jug up and finish it by mid evening, and then more water after that. Or drink at least 4 liter bottes of water.